Abstract

V. M. Egorov1, P. N. Yakushev1, M. A. Arsentiev2,3, A.S. Smoliansky2,3. 1Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia 2 Branch of JSC Karpov NIFHI, Moscow, Russia 3 Mendeleev University of Chemical Technology, Moscow, Russia A comparative analysis for the melting of Polytetrafluoroethylene both in the initial and irradiated state and for composition with 1% "green" silica has been carried out. The method of Dynamic Mechanical Analysis was used to characterize the glass transitions for all compositions studied. The calculation based on the smeared first-order phase transition theory for the contours of the thermal capacity peaks made it possible to reveal the features of structural changes in the composite and in the irradiated Polytetrafluoroethylene.

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